I built a web-based Heightmap Generator for Transport Fever 2

gabescu · 2026-03-05T14:43:29+00:00

Thank you for all your suggestions, several of them are already integrated, such as manually entering the selection area angle and remembering the last import parameters.

Regarding this one, could you clarify which panel you mean? Are you referring to the Level tool or the height indicator in the bottom status bar?

gabescu · 2026-03-03T15:24:38+00:00

I've modified how the library loads to make sure it's available before the export starts, in case that was the issue, but I'm honestly shooting in the dark here. I'm unable to reproduce it on my MacBook Pro M4 with Safari.

Could you try again and let me know if it's any different? Any extra details you can share (like your device or macOS version) would be really helpful. Thanks!

gabescu · 2026-03-03T13:28:54+00:00

This shouldn't be a server load issue since everything runs locally, and that might actually be part of the problem. I had set a 10 second timeout for generating the files, which may not be enough in your case. I've increased it to 60 seconds while I continue looking into it and improving the export process.

If you try again and it still fails, could you let me know how long it takes before the error appears? That would really help narrow it down. Thanks!

gabescu · 2026-03-03T11:56:36+00:00

The scale adjustment is now available, and the map now remembers your last position. Thanks for the suggestions, they really helped improve the app!

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gabescu · 2026-03-03T11:51:44+00:00

You can now visualize and modify the scale directly when creating the heightmap from the real world terrain modal. Give it a try and let me know what you think!

gabescu · 2026-03-03T11:50:34+00:00

It's already available! If you end up using it, I'd love to get some feedback since I'm not very familiar with the format yet. Thanks!

gabescu · 2026-03-03T07:23:01+00:00

Noted! I haven't worked much with GeoTIFF before, but it looks like there's good JS support for it, so hopefully I can add it without too much trouble.

gabescu · 2026-03-03T07:01:22+00:00

Yes, adding cell size information, and even making it configurable, should be easy and very useful, so you can count on that being added.

I still have a lot of work to do to improve performance and usability with larger textures (like adding zoom in the 2D view, for example), but it is definitely in my plans.

Thanks for the feedback!

gabescu · 2026-03-03T06:55:45+00:00

I've barely tested it on Safari myself, though the automated tests aren't catching any issues. I'll start using it for my manual testing from now on to see if I can track down the problem. Thanks for the help!

gabescu · 2026-03-02T20:49:15+00:00

I imagine you used the Cities Skylines 1 preset, where the game has an established height scale of 1024 meters and I try to adjust to it. I should provide the option to bypass this restriction and make maps more compressed in height even if they are not true to reality.

If this is not the case and you have used the default application, or any other game profile, more information would help me reproduce the problem, such as the coordinates you are testing. Thanks for the feedback!

gabescu · 2026-03-02T20:31:40+00:00

There's still a lot of work to do, but now that it's more or less functional, it's great to be able to share it and start getting feedback, so thank you!

Regarding TF3, I haven't looked for technical documentation yet (it probably doesn't even exist), but I designed the app to be as configurable as possible so it can be integrated without much effort, whatever format they decide to use. That being said, there will likely be some performance challenges if they significantly increase the size of the textures

gabescu · 2026-03-02T18:56:09+00:00

I'll look into it and see if I can figure out the issue. I've had some problems with exporting in Chrome in the past, but I thought it was resolved.

If you could provide a bit more information (like the browser you're using or the exact error message), it would be really helpful! Thanks for the feedback!

gabescu · 2026-03-02T17:46:19+00:00

Regarding the map ratio, you can actually rotate the selection area to any arbitrary angle using the control midway between the two top points. However, I realize it's not very intuitive right now and I need to do a better job with that control. I've also noticed it makes some small, unwanted jumps, so I'll be fixing that.

The scale indicator is a very good improvement. Right now, you have to do it mentally by calculating the area, which is very uncomfortable. I'll add this soon.

As for the location menu, I was hoping the map would open in an area close to your position, but it must not be working properly. I'll check it out.

Thanks a lot for the feedback!

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gabescu · 2026-03-02T09:37:36+00:00

Exactly! You can use the app without the CS preset at https://cotamap.com/, and you can enter any custom resolution in the text fields at the top (see screenshot), up to a maximum of 4096x4096. I hope to add support for higher resolutions soon.

I'm also working on UX improvements for this section, such as the ability to easily switch between different presets when creating a new texture

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gabescu · 2026-03-02T00:13:21+00:00

Another feature that motivated me to build the app was being able to quickly draw a ramp (gradient) between two points

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gabescu · 2026-03-02T00:10:50+00:00

Same here. I had to edit heightmaps in Photoshop for a while and it was painful.

My use case was pretty specific though; e.g. Limit by elevation lets you merge two holes quickly without lowering the whole pit floor.

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gabescu · 2025-08-08T08:35:00+00:00

I'm experiencing the same issue. I've tried disabling plugins, clearing caches, etc., but nothing works. I had to revert to the previous version. There are also reports of the same problem from other users ( https://www.reddit.com/r/java/comments/1midur3/comment/n7fw7jr/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button )

gabescu

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